Safety delivery door



7, 1922. 3 SHEETS-SHEET I- IPatented Feb.

NTOR 1 w mm 0| I01 NDI CLYV. wm mmw BEN D r GV-N 0 w 3 Mm SI. m m .i 1 6 6 l w N fi HF INVE L. 6250171 M v L. G. BERGREN.

SAFETY DELIVERY DOOR.

APPLICATION FILED NOV. 11,1919.

' Patented Feb. 7, 1922.

3 SHEETSSHEET 2.

u a I L WITNESS L. G'. BERGREN/ SAFETY DELIVERY DOOR. APPLICATION FILED NOV.1|, 1919.

Patented Feb. 7, 1922.

3 SHEETS SHEET 3- IN VEN TOE Z1 6". Berg/"en /fifiw [L17 HTTORNEYS.

v walk" into the kitchen" .or pantry. In all of.

7 To all whom it may concern:

[UNITED STATES IATENT OFFICE.

LOUIS G.-=BEBGBEN, or. SAN raaucrscd-camroimm.

SAFETY DELIVERY; noon.

new and useful Safety Delivery Door, of which the followin r is a Specification.

My inventionre lates eams: for per: mitting the delivery and collection 'of articles. l

An object of the inventionis to' provide means applicable to the wall or. door of a hotel room, or of a private' dwelling for permitting the delivery and collection .of articles without leaving them exposed and without disturbing the occupant .of the room or dwelling. f 7

My" apparatus'may be installedin the wall, or the base of a door," so that" access'may be had thereto byone on the outside'of the room into which a parcel' isto be deli vered or from which a "parcel is'to be collected; In a hotel room for instance the apparatus maybe arranged inthe wall betweenthe room and the hall, and deliveries of arti cles made therethrough into the room without disturbing the guest; or the guest may leave a package in-the apparatus-to be collected; from the hall. In a private dwell 'ing' the apparatus may; be arranged to per mit deliveries'from therea'r porch or sidethese cases, the articles delivered or left to be'collected are fully protected-and are unexposed; .I 1 I; In the drawings,.Fig. 1 is a front elevaf tion of the deviceiftaken from the inside of r the room. The inner housingiplate' and door are omitted and parts are sectioned better to disclose the structure.

.Fig. 2, is a vertical sectional'viewof the apparatus. The plane'ofsectionis indicated by the line 2-2 of'Fig. 1.

Figures 3 and 4 are r views of the device. The planes of section are indicated respectively by thelines and4-4 of Figure 1.

My safety, delivery. ancbcollec'tin'g appliance comprises a frame 2 adapted-t0 be set within an openingofsuitable' size cut in the wall or door 3; Thelength and height of the frame may be' as desired, but the width of the frame, that is, the distance through it, is approximately e'qual to that.

of the door or wall in which the device is to be installed. The frame is divided into Specification of Letters Patent.

horizontal sectional :PatentedFeb. a. 1922.

'Appli cation filedjfiovember 11, 1919. Serial No. 337,234..

like a channel iron as shown in Figure 3 and are each secured in place by a single screw 8. The flat bottom lining plate 9 is similarly secured to lugs 11 and is providedon each two' portions by the partition wall4 which edge with hinge lugs-forming one-half of the hinge 12 upon which the doors 13 and 14 are hung. The hinge'lugs formed on the doors are spaced'from'the lower edge of the door, and" the parts; are so proportioned v p and arranged"that when either door is opened to horiz'ontalposition asshow'n in Figure 2, the lower edge of the door engages 'the' underside of the bottom lining plate r9, so that further downward movement doors 13 and 14 the lie flush with the housing plates'16and 1 respectively, which are suitably apertured to receive the doors. The housing'plates are secured in position by is prevented. In-the closed position of the bolts" 18 havingfplain heads 19 seated flush in the platelti on the outside of the room; and which pass throughv the wall and'terminate in;nuts"=21 on theinside housing plate 17; Since-the frame '2 is'positioned between; the' hous'ing plates, it' is held. in a place j by them. V r

: Projecting at'an' angle of about 45 de grees from the lowerileft corner of theo'uter' door 13 is an: arm 22', theend of which is recessed to engage the point ofthe head 23 of the rod 24 which-is slidabl'y and-loosely disposed between thejlining and theframe in'the adjacent lug 7 andpressed down wardly by a spring 26 interposed between the 'lug' and the head of therod'. The ten sion'ofthe spring is sufficient to raise the door from the horizontal open position' to the: closed position andthe arm-22, rod and springstructure comprise means for closing the outer door and normally keeping it closed.

Means door whenthe; inner door is open. An apere tured' lip 27 is provided on the outer door are-provided for locking the outer adapted tobe'engagedby the bolt 28 slidably arranged inqthe-partition wall 4] A lever arm 29 is pivoted 'onflugs '31- fo'rm'edon the upper wall of the'fr'ame; one end-being bifurcated to engage around the stem of the bolt v below the head 32. A compression spring 33 is interposed between the lever and the lower end of the bolt, so that normally the end of the lever 29 lies close to the head 32. 'The other end of the lever is bifurcated and pivotally connected with the upper end of the rod or link 36, the lower end of the link being pivotally connected to the arm 37 projecting at about 45 degrees from the lower end of the inner door 14. This rod too, is disposed betweenthe lining on that side of the frame and passes loosely through an aperture 38 formed in the partition wall 4-. The rod is provided with a collar 39 anda' spring 41 is interposed between the collar and the partition wall. The spring is resilient enough to close the open door 14, thus serving the same purpose as does spring 26 for door 13. With both doors 13 and 14 closed the bolt 28 is raised and one wishing to make a delivery through the apparatus, pullso en. the outer door by-meansof the recessed nger-hold 42 and thrusts the package through,the inner v door swinging down to receive it and serving as a shelf on which the package rests. Release of the outer door permits it to close under the action of the spring 26, and the spring bolt 28 being then in the lowerposition, sna s into the lip 27 and locks the outer the lip 27.

door to t e closed position so that it cannot" again be opened until-thepackage is removed from the inner door and it isclosed, bolt 28 then being lifted free from engagement with Meansare provided forretainingthe bolt 28 in the up er position when the inner door is open, so that apackage may be left thereon to be collected by one from the outside. 7 A

.;, shaft 43 is rotatably mounted at one end. in

a lug 44 fixed on the, partition wall 4, and at the other end (in theplate 17, and is provided with a knurled knob 46, on the. outside of the housing whereby the shaft maybe turned in either direction. A projection 47 on one side of the shaft, adapted to strike the surface of the partition wall 4, limits the turning movement of the shaft to about 180 degrees. This projection or stop is disposed close to the.

1 inside surface of the housing plate and together with theknob 46 on the opposite side of the housing plate prevents longitudinal movement of the shaft. The opposite end of the shaft is providedwith a pin 48 offset from the axis of the shaft and underlying a flange or lip 49 fixed on the bolt 28. With the stop.

47 in contact on one side with the partition wall, the pin 48 is at the lowest point and interferes .inno way With the movement of I the bolt. When the knob 46-isturned torolatchthe do0r13. Ifthe bolt is in its upper tate the shaft through one-half a turn, the offset pin 48 rises, and if thebolt is in the lower or looking position, engages the lip 49 and carries the bolt upwardly to free or unposition when the shaft is turned, the pin in its upper position where it 1s on a dead center, acts as a stop to prevent the lowering housing plate may bear suitable indicia to t acquaint the user with the function or operation of the knob.

I- claim: t 3 1. A device of the char cter described comprising a frame, a door arranged on one side. i

of said frame, a spring-pressed bolt, for looking said door, afsecond door pivoted'on'a horizontal axis on the opposite side of said frame, means for halting the movement of i said second door at its horizontal position, a lever onwhich'saidbolt is mounted, a link connecting said lever-and said second door, and a spring arranged to automatically close said door. i

2.. A device of thecharacter desc ibed com-. A i A prising a frame having a passage therethrough, doors on said frame for closing said passage, a lever pivoted on'said frame,.a spring-pressed boltifor locking one of said doors mounted on saidlever, anda linkc onnecting said lever with the other door whereby movement of said other door to closed and open position moves said bolt toinoperative and oiperative position respectively. j

3. device of the character described com prising a frame having a passage therethrough, doors on said frame for closing said passage, a lever pivoted on said I frame, a

spring-pressed bolt for locking one of said doors mounted on said; lever, alink connecting said leverwith theother door whereby movement of said other doorto closed and open position moves said bolt to inoperative and operative position respectively,and manually operated means for retaining said bolt in and moving it to inoperative position.

4. In a device of the character described, a

frame having a passage therethrough, an inner and an outer door on said frame for clos ing said passage, a lever pivoted on said frame, a spring-pressed bolt for locking said outer door;mounted on said lever, a link connectingisaidlever to said'inner door, a shaft journalled adjacent said bolt, a pin on said shaft adapted to engage said bolt, means for limiting the turning movement ofsaid shaft, and means for manually turning said shaft; In testimon whereof, I have hereunto: set

my hand at i an Francisco, California,this

29th day of October, 1 919. f V V t a LOUIS G. BERGREN. l :In presence of f t 1 I p I t C. S. EVANS. 

